A groundbreaking study conducted by University of Pittsburgh Alzheimer’s disease researchers reported in the journal Brain (currently online) confirms that Pittsburgh Compound-B (PiB) binds to the telltale beta-amyloid deposits found in the brains of patients with Alzheimer’s disease. The finding is a significant step toward enabling clinicians to provide a definitive diagnosis of Alzheimer’s disease in living patients. Until now, the beta-amyloid deposits to which PiB binds have been confirmed, without question, only in the autopsied brains of patients afflicted with Alzheimer’s. The new findings, which correlate PiB-identified beta-amyloid deposits from living patients to their post-mortem autopsy results, will ultimately aid in the early diagnosis of Alzheimer’s, help clinicians monitor the progression of the disease and further the development of potential treatments. … Continue Reading »
March 27th, 2008
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Kevin
Targeted immune suppression using human umbilical cord blood cells may improve the pathology associated with Alzheimer’s disease, a new study in a mouse model of this currently untreatable neurodegenerative condition reports. The study, led by researchers at the University of South Florida, is published online in the peer-reviewed journal Stem Cells and Development (www.liebertpub.com/scd).
Following a series of low-dose infusions of human umbilical cord blood cells into mice with Alzheimer’s-like disease, the amount of amyloid-ß and ß-amyloid plaques — hallmarks of Alzheimer’s pathology in the brain — was reduced 62 percent. Amyloid-ß induces an inflammatory response in the brain associated with the interaction of CD40 and CD40L, two pro-inflammatory molecules. Researchers also reported an astonishing 86-percent improvement in cerebral amyloid angiopathy (CAA), another hallmark of Alzheimer’s disease. CAA compromises the integrity of the blood-brain barrier, disrupting normal trafficking of various molecules and cells from and to the brain and is believed to be the main culprit for the brain inflammation observed in Alzheimer’s. … Continue Reading »